Oil or gas engine.



110.9411697. PATBNTEDMIARpze, 1997* E. THOMSON.

OIL 0R. GAS ENGINE.

APPLIoATIoN H'Lnn 1123.151899.

vll/111211.vili/1111111111o haust and give rise to nuisance and trouble2 5` OIL OR GAS ENGINE.

Specification of Letters Patent.

Patented March 26, 1907.

Application tipa .1pri115, 1899. Lspripi No. 713,093.

, tain new anduseful Improvements in Oil or Gas Engines, of which thefollowing is a specification.

The present invention relates to a means andapparatus for deodorizing ordestroying the smell of exhaust-gases, such as are produced by gasolene,kerosene-oil, or sometimes in gas engines. and ordinarily escape fromthe yexhaust of such engines. v

It relates also to means combined with the deodorizer `for vaporizingthe oil used and for heating the ignition-tube for firing the charge. v

The object of my invention is to provide an attachment whereby by aslight expenditure of fuel in addition to that which operates an enginethe partially-burned odoriferous gases which may escape from the exfromthe odor can be obviated.

My invention is applicable to various types of oil, gas, or gasoleneengines, `whether stationary or applied to Vehicle-work.

Figure 1 is a longitudinal section of an engine embodying my invention.Fig. 2 lis a longitudinal section of an engine in which the .piston onits forward stroke acts as a pump or compressing a charge of air. Fig. 3is a vertical section of a modification of the deodorizer. Fig. 4 is avertical section of a still furtherA modification of the deodorizer,

and Fig. 5 is a sectional detail of a modificar In Fig. 1 is representedthe cylinder of an ordinary engine, the piston P of which moves back andforth, turning wheel W by an ordinary'crank. The engine is provided withany ordinary admission for air and fuel and for escape of exhaust-gases.It,in fact, represents any ordinary type of explosive-engine. Mountednear the engine is a fire-pot orfurnace F, containing either combustibleas fuel, such as coke, anthracite coal, .or containing refractorymaterial which can be heated by. fuel. The exhaust-gases assing throughthe exhaust ort or passage J of the engine ass through t e fuel mass inthe firepot F, eing distributed therethrough by a suit-able grate G, andwhen these exhaustgases are so depleted of air that there is no oxygenfor further combustion I provide a small air-pump A, which supplies aquantity l of fresh air, taldng the air in by its proper inlet-valve Iand forcing the said air through a suitable valve A and passage A, sothat it mixes with the exhaust-gases passing the port E and passesthrough the fire in the firepot F. This re in the fire-pot F oncelighted continues to burn, and it is originally started in the ordinaryWay of starting a fire by Opening the draft at I) and igniting the fuelin the fire-pot F. The heat of the lirepot F may be made in my inventionto keep an ignition-tube T hot for firing the gases in the engine, andit, further, may be made to vaporize oil fed to the engine through anoilsupply O by means of suitable pumps along with air which is sent intothe engine. No means are shown for forcing oil and air into thecylinder, as that is understood to be the same as in ordinary engines.The oil-pipe O, however, traverses the' heated interior of the fire-potor furnace F and receives a certain portion of the heat, so that any oilwhich passes it is thoroughly vaporized before entering the cylinder C.Where the ackiug in the fire-pot F is in the form of sma particles, itacts also as a mufHer for the exhaust sound at E, and where it is madeof small particles of refractory material, such as pumice-stone orfire-brick, the airump A is arranged to supply air mixed with) somefuel, such as oil, to the. furnace; The oil to be mixed with the air isdrawn into the pump through a pipe O2, (see Fig. 5,) which is connectedwitha supply of oil Whennecessary in a manner not shown in the drawings.i

In Fig. 2 the air which reaches the fire-pot F is shown as pumped by theforward motlon of the piston P, the front end of the cylinder C beingformed by a chamber or space with valves V V opening therein. When thepiston P moves outwardly-fi. '6., toward the valves V V--they shutand-the air within the space within which the valves V V are situated isslightly compressed. After the piston has moved full 'forward ituncovers openings in the sides of the cylinder, as at B B, &c., wherebythe air rushes into the cylinderspace back of the piston P and scavengesor washes out the burned charge formed during explosion. This, escapingbya suitable passage, as at E goes through the grate G of the fire-potF, as before. In this case the waste gases are naturally mixed with acertain volume of fresh air which conveys enough oxygen to the fire tokeep up the combustion; or

IIO

if the engine itself is supplied with an excess of oil through the pipeO, more than suiiicient r pot F, as by dividing the fire-pot into two.

sections by the septum or division D2, Fig. 3, and roviding suitablevalves and mechanism or exchanging them at intervals, as at` Y and Y2,exhaust-gases may be fed to one f side or half of the section of thefire-pot, as

that just below R, while fresh air is injected under or through thatbelow L. Suitable passages with openings are provided to feed the twogases-z'. e., the air and the Waste gases from the engine. For instance,the inlet-passage Y may be connected-to the exhaust-port E of theengine, (shown in Fig. 1

and the inlet Y2 may be connected to the air *.gases.

passage A of the engine, (shown in Fig. 1.) By shifting the valves Y andY2 from side to side at intervals the two parts under R and L receivealternately'the air and the waste This shifting should be frequentenough to prevent the-loss of high temperature 1n the materials withinthe nre-space. To facilitate this, the fire-potF` is doublev' jacketed,as shown by the outer jacket and septum X Z, providing a' passagey forthe movement of the incoming air,as shown by the arrows, whereby it isheated before it reaches the fire-space by any waste heat which isescaping from-'the Walls of the fire-pot. It is of course understoodthat in this instance the material placed within thev fire-potiscombustible or the air-supply passing valve Y2 is charged withsufficient combustible to maintain the temperature of said material."

The septum which divides the two halves of the fire-space is of coursecontinued so as to divide the passages between the iire-pot and the setum Z, and casing X is constructed' so as to 'vide into-the two sectionsmentioned as working alternately.

In Fig. 4 a modification is shown in which the exhaustort E of theengine and the apassage A o the engine (shown in Fig. 1`) lead todifferent portions ofthe grate at the lower end of thel fire-pot orfurnace F. The exhaust-gases and air passing through the port E andpassage Al are mixed in the fire-pot. I-n this case also it Will ofcourse be understood that the air passing through the assage A may bemixed with oil or other el, if desirable.

The heated mass in thefireot F of my invention serves primarily as aeodorizer; but at the same time it acts as a muflier for theexhaust-gases, diminishing the sound of their escape, and, further, itsupplies heat to an oil-vaporizer passing therefrom or receiving heattherefrom and keeps ignition-tube T hot for the firing of the charges, Tbeing entered into the mass of hot material at any suitable point. Theoil-vaporizing tube O may of course be made much larger, and,particularly, the feed of the air admitted may be varied. The oil maypass along with the air to the vaporizer, as is commonly done inoilengines. Also the cylinder of the engine while shown unjacketed maybe provided with a Water-jacket for keeping it cool, as is ordinarilydone. My invention relates more particularly to the employment of a hotmass through which exhaust-gases are passed.

Having thus described my invention,l what I claim, and desire to secureby Letters Patent, is#- f l. The combination with an oil-engine andfurnace, the heated material in which is traversed by the exhaust-gasesin escaping, of a means for supplying air and combustible to saidfurnace for maintaining its high temperature, an ignitiontube for theengine which is heated by the furnace, and an oil-vaporizer also heatedby the heat of the furnace,for the purpose set forth.

2. In a gas or oil engine, the combination of a piston and cylinder,means for supplying a mixture of oil and air to the engine in which theoil is in excess beyond the charge normal to the engine, a deodorizercontaining a finely-divided mass, an exhaust-passage -be tween theengine and the deodorizer, and means for forcing the unconsumed productsfrom the cylinder into the deodorizer where they are consumed.

3. In combination a gas or oil engine, a deodorizer which is dividedinto sections, and means whereby at vone time one section may receiveair'and another section exhaust gasea and at another time the oneexhaust gases and ,the other air.

4. In combination a gas or oil engine, a de odorizer which is dividedinto sections,

means for admitting air to one section and exhaust-gases to anothersection, and means for directing the air to the section which has beenreceiving exhaust-gases and the exhaust-gases to the section which hasbeen receiving air.

5. In combination a gas or oil engine comprising a iston and cylinder, adeodorizer which is ivided into sections, an exhaustpassagecommunicating with the deodorizer andthe cylinder, means for sup lyingair to the deodorizer, and means for irecting the exhaust-gases into anyof the sections.

6. In combination a gas or oil engine, a vaporizer, an ignition device,a heater maintained at a high temperature wholly or in part by theexhaust-gases for heating the vaporizer and ignition device and vmeansfor supplying air tosaid heater.

7. In a deodorizer, the combination of a Alo chamber divided in tosections and containing fuel, a passage for admitting fases to one ofthe sections, a passage for admitting air to another of the sections,and valves for controlling the admission of gas and air so arranged thatthe sections receiving air and gas may be made to alternate..

S. 1n a deodorizer, the combination of al receptacle which containsfuel, a septum for dividing the receptacle into two or more parts, ajacket surrounding the receptacle and separated Atherefrom by a space,and a septum for dividing the space between the reseptacle and thejacket into two or inore parts.

i). 1n a deodorizer, the combination of a receptacle filled or partiallyfilled with coinbusiible material, a jacket surrounding the receptacleand separated therefrom by a space., means forsupplying gas to the spacebelow the receptacle, a second jacket outside of the first, .and meansfor supplying air to the space between the two aekets.

1t). .ln a deodorizer, the combination of a receptacle divided into twosections, each section being partly or wholly illed with com bustiblematerial, adouble jacket surroundv ing thc ieceptacle whereby theair-passage to it is compelled te pass up and down, thereby receiving acertain amount of' heat from the receptacle, a source of air-supplycommunieating with the space formed by the vpickets, and means foradmitting gas to the space below the receptacle wherein it ininffleswith l air and passes through the fuel in ille receptacle.

11,. .ln a gas-engine, the combination of a piston and cylinder, anignition-tube which 1.2. In combination a piston and cylinder,

a furnace situated in close proximity to the cyliiidel', means forautomatically supplying fuel to the furnace, alid an ignition-'tube foi'firing the charge of gas in the cylinder which extends into the furnace,the interior ol' said tube being in open communication with saidcylinder.

13. ln combination, a piston and cylinder, a furnace situated in closeproximity to the cylinder, a pump for autoinatically supplying fuel tothe furnace, a vapori/.er for delivering fuel to the cylinder which isheated by the furnace., and an ignition-tube which opens into thecylinder and extends into the furnace..

14. [n an internal-combustion engine, a combustion-chaiiiber, a furnacelocated in proximity tl'iereto, air-pumping means operated by theengine, and means for causingr the air pumped thereby and theexhaustgases from the combusiion-chamber to pass into said furnace.

ln witness whereofl have hereunto set my hand this 7th of April, 189).

ELlllU THOMSON.

